Shearing-tool.



PATBNTED APR. 19, 1904.

S- ARGE. SHEARING TOOL.

Arrmonmn r1Lnnoo'1-a, 190s` 4 SHEETS-SHEET 1.

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PATBNTBD APR. 19V, 1904.

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SHBARING TOOL. APPLICATION FILED 00T. 3, 1903.

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N0 MODEL.

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PATENTED APR. 19, 1904.

S.. ARCE. SHEARING TOOL.

APPLIGATION FILED oo'r. s. 190s.

4 SHEETS-SHEET s.

PATENTED APR. 19, 1904. S. ARGE. SHEARING TOOL.

APPLICATION FILED 001.23. 190s.

4 SHEETS-SERIETA.

N0 MODEL.

gitudinal central section of the same with UNITED STATES Patented April19, 1904..

SANTIAGO ARCE, OF BUENOS AIRES, ARGENTINA.

sHEAmNG-Tool.. y

SPECIFICATION forming part of Letters Patent No. 757,429, dated April19, 1904. n l

Application iiled October 3, 1903.

To all whom it may concern:

Be it known that I, SANTIAGO ARCE, a citizen of Argentina, residing atBuenos Aires, federal district, Argentina, have invented certain new anduseful Improvements in Shearing-Tools, of which the following is aspecication.

My invention relates to electromechanical shearing tools or clippers;and it consists in the novel and advantageous construction hereinafterdescribed, and particularly pointed out in the claims appended.

In the accompanying drawings, forming part of this specification, Figure1 is a broken plan view of the clipper constituting the preferredembodiment of my invention as the same appearswith its cap-plateremoved. Fig. 2 is a broken view, partly in longitudinal verticalsection and partly in elevation, of the clipper. Fig. 3 is a plan viewof the base-plate of theclipper removed. Fig. 4 is a longitudinalcentral section of the same on line 4. 4. of Fig. 3. Fig. 5 is a detailhorizontal section illustrating the disposition of the eccentric in theoscillatory cutter-bar. Fig. 6 is a longitudinal central section of thesame on line 6 6 of Fig. 5 with the eccentric in elevation. Fig. 7 is aplan view of the cutter removed from the bar. Fig. 8 is a transversesection of the clipper, taken through the controller thereof on the line8 8 of Fig. 9. Fig. 9 is a vdetail longitudinal central section takenthrough the controller. Fig. 10 is adetail horizontal section taken inthe plane indicated by the line 10 10 of Fig. 9. Fig. 11 is a rear endelevation of the clipper. Fig. 12 is a transverse section taken in theplane indicated by the line 12 12 of Figa 10. Fig. 13 is a plan view ofthe capplate removed. Fig. 14 is a longitudinal central section of thesame. Fig. 15 is a plan View illustrating the field-magnet and therotary armature of the clipper. Fig. 16 is a lonparts in elevation. Fig.17 is a transverse section of the pole-piece 12 of the field-magnet.Fig. 18 is a perspective vview of the bracket in which the upper end ofthe armature-shaft is journaled. Fig. 19 is a plan view illustrating theforward end wall of the clipper and the tension-screw bearing in a lugSerial No. 175,606. (No model.)

yfinger-plate 2 at its forward end and also having bearings ld and 1b.

3 is an' oscillatory bar having Va journal 4. at its rear end disposedin the bearing 1b of platel and also having an opening 3, preferablyrectangular, at an intermediate point of its length and a curvilineargroove 8 in theupper side of its forward portion.

5 is a cutter disposed below and fixedly connected by screws to theforward portion of the bar 3.

7 is an armature shaft or arbor, the lower end 22 of which is stepped inthe bearing 1 of the base-plate 1, and 6 is an eccentric fixed on saidshaft and disposed in the opening 3*L of the bar 3. The armature 21 onthe shaft 7 may per se be and preferably is of the wellknownconstruction.

In virtue of the construction thus far de scribed it will be observedthat'when the armature 21 and its shaft 7 are" rotated oscillatorymotion will be directly transmitted tor the bar 3 and the cutter 5 onthe ylatter will berapidly moved to and fro over the linger! plate 2. Itwill also be observed that the transmission of motion from thearmatureshaft kto the oscillatory bar is attended by but a minimumamount of friction and entails the l employment of no delicate parts,such as are liable to get out of order after 'a short period of use. l Y

The field-magnet of the clipper vis made up of pole-pieces 12 and 13,Fig. 15, which .terminate at their rear ends in plates 15 and 16, andcross-bars 17 and43, extending between and connecting said plates. Thefield-coil 18 is wound on the bar 17, which constitutes the corethereof.

2O is a commutator arranged on the armature-shaft 7 in the usual manner;34. and 35, commutator-brushes arranged to be regulated by screws 38 and39; 25, a diagonal bracket connected by screws 26'and 27, Fig. 1, to theIOO pole-pieces of the held-magnet and containing' a bearing 24, whichreceives the upper end of the armature-shaft; 28, a cap-plate havinglugs 29 and 30, which hold it to the plates 15 and 16 of thefield-magnet, and also having a diagonal opening receiving theupwardly-extending portion of the bar 25; 11, a front wall connected tothe plate 28 and having a lug 10, in which bears a screw 9 for pressingthe cutter-bar against the base-plate; 14 14, plates interposed betweenthe base-plate 1 and the pole-pieces 12 and 13 of the field-magnet andhaving for their purpose to exclude dirt from the working parts of theclipper; 42, a lower casting fxedly connected by screws 45 and 46, Figs.2 and 3, to the base-plate 1; 41, an upper casting abutting' at itsforward end against the rear end of the cap-plate 28; 47, a screwconnecting the castings 42 and 41, and 40 40 handle portions, preferablyof wood and semicircular in transverse section, connected together bythe screws 48 and 49, by the screw 47 to the castings 42 and 41, and byscrews 43 and 44 to the plates 15 and 16 of the fieldmagnet.

It will be observed from the foregoing that with the exception of thecutter 5 the working parts of the clipper are entirely inclosed in thecasing formed by the several plates and castings described, and hencedust, dirt, hair, &c are eifectually prevented from gaining access tosaid parts and interfering with the Operation thereof. It will also beobserved that the handle formed by the portions 40 is sturdily connectedto the casing and is so disposed as to enable the operator to manipulatethe device with facility and to the best advantage.

36 and 37 are conductors connected by screws 32 and 33, respectively, tothe commutator-brushes 34 and 35, so as to make electrical connectionbetween the field-coil 18 and said brushes; 51 and 52, conductorsleading to the field-coil 18; 52, a conductor arranged with theconductor 51 in a cable 54, extending rearwardly from the rear end 53 ofthe handle; Z and Z2, contactpieces arranged on a part a, secured inposition by a screw 11 and electrically connected with the conductor52u; Z?, a contact-piece arranged on a part Z, secured by a screw 111and electrically connected with the conductor 51; Z4, a contact-pieceelectrically connected by a bar c to the conductor 52, and Z5 aswitch-lever movable between the pairs of contact-pieces Z Z2 and Z3 Z",pivoted at e to the casting 41 and having a handle Z at its upper end.-With the conductors 51 and 52"' connected with the opposite poles of anelectrogenerator the clipper is controlled by the means just described,as follows: When the switch-lever is thrown between the contactpieces Zand Z3, the current will pass from one pole of the generator throughconductor 51, contact-piece Z3, switch-lever Z5, contactpiece Z', andconductor 52L to the opposite pole of the generator, and hence thecutterbar 3 will be left idle. Vhen, however, the lever Z5 is thrownbetween the contact-pieces Z2 and Z", the current will pass through theconductor 51, the coil 18 of the field-magnet, the conductor 52, theconducting-bar c, the contact-piece Z", the switch-lever, thecontactpiece Z2, and the conductor 52fL to the other pole of theelectrogenerator, and hence the field-magnet will be energized and thecutterbar 3 actuated. It will also be observed that the speed of thecutter-bar may be readily regulated by shifting the lever Z5, since whensaid lever is in engagement with all of the contact-pieces but a part ofthe current passes through the coil of the field-magnet.

The contact-pieces Z', Z2, Z3, and Z, together with the switch-lever Z5,constitute the controller of the clipper, which controller is arrangedina chamber in the upper portion of the handle, as best shown in Fig. 9.

The location of the switch-lever on the handle of the clipper obviouslyenables the operator to readily control the cutter-bar irrespective ofthe position of the clipper with respect to the animal being clipped.

Such changes or modifications may be made in the clipper in practice asfairly fall within the scope of my invention as claimed.

What I claim is- 1. The combination in a clipper of a casing comprisingthe pole-pieces and the field-coil core of a held-magnet; thepole-pieces terminating at their rear ends in plates 15 and 16, acap-plate 28 having lugs which hold it to the plates 15 and 16, and alsohaving a diagonal opening, a base-plate 1 having a linger-plate at itsforward end, a front Wall 11 connected to the plate 28, plates 14interposed between the base-plate 1 and the pole-pieces of theheld-magnet, a lower casting 42 lixcdly connected to the base-plate 1,and an upper casting 41 abutting at its forward end against the rear endof the cap-plate, handle portions arranged between the castings 41 and42 of the casing and connected together and to said castings; and alsoto the plates 15 and 16; one of said portions having a chamber, adiagonal bracket 25 connected to the pole-pieces of the field-magnet,and having an upwardly-extending portion arranged in the opening of theplate 28, an oscillatory bar pivoted in the casing and having a cutterat its forward end, an armature journaled in the bracket 25 and thebase-plate 1, and connected with the oscillatory bar, a iield-coilmounted on the core, a commutator intermediate of the field-coil and thearmature, and a controller electrically connected with the field-coiland adapted to be connected with a source of electrical energy; saidcontroller being located in the chamber of one handle portion, andhaving a lever extending therefrom.

2. In a clipper, the combination of a casing IOO IIO

ISO

comprising the pole-pieces and the eld-coil core of a field-magnet,handle portions fixed to said casing; one of said handle portions havinga chamber in its inner side, a cutter-bar, an armature mounted in thecasing and connected with the cutter-bar, a field-coil mounted on thecore, a commutator intermediate of the field-coil and the armature, acontroller comprising contact-pieces Z Z2, Z3 and Z4; and a switch-levermovable between the pairs of contact pieces Z Z2 and Z3 Z4; the saidcontroller being arranged in the chamber of the handle portion with itslever extending therefrom, a conductor 51 connected to the connesses.

SANTIAGO ARCE. Witnesses:

I. H. WELLS, B. MAYER.

